As many Marshall, the JCM900 2100SLX sounds VERY bright, outch ! So, I removed the 1nF bright cap (called …R22 !!!) and that is how it sounds now : Easy mod, you can even cut one leg of R22 ! … Continue reading →

As used by Rory Gallagher and Leslie West … Actually, even if Rory played on Stramp amps, I’m not sure he used this model … Huge capacitors and transformers … ‘70s PCB, that can be accessed from inside and outside … Continue reading →

I got this amp for a complete check-up. 50W, 3 x 12AX7, 2xEL34, 1 GZ34 End of ‘60s, beginning of ‘70s I think … Miles Platting amps were made by Wilsic Here is a Wilsic 50W (picture from … Continue reading →

I got this nice little amp to fix. It fizzed. I checked the tube : OK … then I saw R39 resistor was burnt. I spiced the FET PI, replaced the burnt resistor and compare voltage : good ! … Continue reading →